Chapter 33 -3 Flashcards
1
Q
In cnidaria, what is used for stinging prey?
A
nematocytes which contain organelles called nematocysts
2
Q
What are the 4 classes of Cnidarians?
A
Hydrozoa
Schphozoa
Anthozoa
Cubozoa
3
Q
What forms in hydrozoa?
A
medusa & polyp forms
4
Q
What forms in schphozoa?
A
medusa only
5
Q
What forms in anthozoa?
A
polyp only
6
Q
What are the characteristics of Hydrozoa?
A
fresh water organism
mobile polyp body
2 layers of tissues
7
Q
What does the epidermis do in hydrozoa?
A
cnidocytes to sting & catch food
8
Q
What is the endodermis in hydrozoa?
A
digestive cells
9
Q
What is mesoglea in hydrozoa?
A
jelly-like fluid in the middle layer
